Following my review of Solarwinds Virtualization Manager 6.3, the fair folks at Solarwinds gave me the opportunity to put my hands on their next planned release, namely VMAN 6.4. While there is no official release date yet, I would bet on an announcement within Q4-2016. The version I tested is 6.4 Beta 2. So what’s new with this release?
From a UI perspective, VMAN 6.4 is very similar to its predecessor. Like with VMAN 6.3, you install the appliance and either install VIM (Virtual Infrastructure Monitor component) on a standalone Windows Server, or integrate with an existing Orion deployment if you already use other Solarwinds products. You’d almost think that no changes have happened until you head over to the « Virtualisation Summary » page. The new, killer feature of VMAN 6.4 is called « Recommendations » and while it seems like a minor UI improvement there’s much more to it than it looks like.
While in VMAN 6.3 you are presented with a list of items requiring your attention (over/under-provisioned VMs, idle VMs, orphan VMDK files, snapshots etc. – see my previous review), in VMAN 6.4 all of these items are aggregated in the « Recommendations » view.
Two types of recommendations exist: Active or Predicted. Active Recommendations are immediate recommendations that are correlated with issues that are currently showing up in your environment. If you are experimenting memory pressure on a given host, an active recommendation would propose you to move one or more VMs to another host to balance the pressure. Predicted recommendations, on the other hand, focus on proactively identifying potential issues before they become a concern, based on usage history in your environment.
The « Recommendations » feature is very pleasant to use and introduces a few elements that are quite important from a virtualisation administrator perspective:
- First of all, administrators have the possibility to apply a recommendation immediately or schedule it for a later time (out of business hours, change windows, etc.)
- Secondly, an option is offered to either power down a VM to apply the recommendation or to attempt to apply the recommendation without any power operations. This features comes in handy if you need to migrate VMs, as you may run into cases where a Power Off/Power On is required, while in other cases a vMotion / live migration will suffice
- Last but not least, the « Recommendations » module will check if the problem still exists before actually applying a recommendation. This makes particularly sense in the case of active recommendations that may no longer be relevant by the time you decide to apply the recommendation (for example if you decide to schedule a recommendation but the issue is no longer reported by the scheduled time)
A nice and welcome touch in the UI is a visual aid that shows up when hovering your mouse over the proposed recommendations. You will see a simple & readable graphical view / simulation of the before & after status of any given object (cluster, datastore, etc.) in case you decide to apply the recommendation.
The “Recommendations” function, while apparently modest from an UI perspective, is in fact an important improvement that goes beyond the capacity reclamation and VM sprawl controls included in VMAN 6.3. Administrators are now presented with actionable recommendations that are relevant not only in the context of immediate operational issues, but also as countermeasures to prevent future bottlenecks and capacity issues.
A few side notes: if you plan to test the beta version, reach out to the Solarwinds engineers. The new “Recommendations” function is still being fine-tuned and you may not be able to see it if you integrate it with your current VIM or Orion environment. Once you install VMAN 6.4, you should let it run for approximately a week in order to get accurate recommendations.